Lots of times my Frigidaire gallery (model ?) Will begin to beep and display error codes. Until recently it's always been an f11 code. Here last week an f15 code showed up and today an f15 code. Can't stop the incessant beeping so I have to throw the breaker. Getting to point of beginning to worry about breaker giving out. Anybody have any suggestions? I'd rather not throw it out, but am getting ready to.